heating AUDI A4 AVANT 2008 User Guide

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-Read the engine coolant level in the open coolant expan­
sion
tank => fig. 211. With a cold engine, the coolant level
should be between the "min" and "max" markings. When
the engine is warm, the level may be slightly above the "max" marking.
The location of the coolant expansion tank can be seen in the
engine compartment
illustration=> page 275 .
To obtain an accurate reading, the engine must be sw itched off.
The expansion tank in your vehicle is equipped with an electric
coolant level sensor.
When the coolant level is too low, the warning light in the Auto ­
Check System
=> page 31 will blink until you add coolant and the
level has been restored to normal. Even though there is an electric
coolant level sensor, we still recommend you check the coolant level
from time to time.
Coolant loss
Coolant loss may indicate a leak in the cooling system . In the event
of coolant loss, the cooling system should be inspected immedi­
ately by your authorized Audi dealer . It is not enough merely to add
coolant.
In a
sealed system, losses can occur only if the boiling point of the
coolant is exceeded as a result of overheating.
& WARNING
The cooling system is under pressure and can get very hot. Reduce
the risk of scalding from hot coolant by following these steps.
• Turn off the engine and allow it to cool down.
• Protect your face, hands and arms from escaping fluid and
steam by covering the cap with a large, thick rag.
& WARNING (continued)
• Turn the cap slowly and very carefully in a counter-clockwise
direction while applying light, downward pressure on the top of
the cap.
• To avoid being burned, do not spill antifreeze or coolant on the
exhaust system or hot engine parts. Under certain conditions, the
ethylene glycol in engine coolant can catch fire.
0 Note
Do not add any type of radiator leak sealant to your vehicle's engine
coolant. Adding radiator repair fluid may adversely affect the func ­
tion and performance of your cooling system and could result in damage not covered by your New Vehicle Limited Warranty. •
Adding coolant
Be very careful when adding engine coolant.
Before you check anything in the engine compartment,
always read and heed all WARNINGS => & in "Working in
the engine compartment" on
page 273.
-Turn off the engine.
-Let the engine cool down.
-Place a thick rag over the coolant expansion tank
=> page 281 , fig. 211 and carefully twist the cap counter­
clockwise
=> & .
-Add coolant.
-Twist the cap on again tightly.
Replacement engine coolant must conform to exact spec ifications
=> page 280, "Coolant". If in an emergency coolant additive G12 + is .,,

11111.___F_ u_ s_ e_s _ a_ n_d _ b_u_ l_ b _ s ______________________________________________ _
No.
37
38
39
40
41
43
44
Equipm ent
Pump for windshie ld and headlight washer *
system
Central elect ric, anti -theft a larm system, rear
lid/ tr u nk release
Rad io
Horn
Auxiliary hea tin g
Electronic Stab ilization P rogram (ESP)
Engine timing
Seat heating
Automatic circuit bre akers : Amps
30
15
20
25
30
25
15
35
T he electric power windows and the electr ic seat adjusters are
pro tected with circu it breakers which reset automatica lly after the
circuit overload has been corrected .
[ i ] Tip s
• Whenever replacing a fuse, always consult the sticker on the
inside of the fuse panel cover . It contains the most up -to -date info r­
mat ion regarding the fuse arrangement . If in doubt , ask your autho ­
rized Audi Service adv isor .
• Some of the equipment items listed are op tiona l o r only avail ­
able on certa in model configu rations .•
Bulbs
A pplies to vehicle s: wit h xenon he ad ligh ts
Replacing light bulbs
For your safety, we recommend that you have your autho ­
rized Audi dealer replace any bulbs for you.
I t is becoming increasing ly more and more difficult t o replace
vehic le light bulbs since in many cases, other parts of the car must
first be removed before yo u are able to get to the bu lb . T his applies
especia lly to the ligh t bu lbs in the front of your car which you can
only reach th rough the eng ine compartment.
Sheet metal and bulb ho lders can have sharp edges that can cause
s e rious cuts, and parts must be correctly taken apart and th en prop­
erly put back together to help prevent breakage of par ts and long
te rm damage from water that can enter housings that have not
been properly resealed .
For your safety , we recommend that you have your authorized Audi
dea ler replace any bulbs for you, since your dealer has the prope r
tools, the correct bulbs and the expertise .
Gas di sc harge l amp s (x enon l ight s)*:
Due to the h igh e lectrical voltage, have t he bu lbs replaced by a qual ­
ified technician . Head lights with xenon light are identified by the
high voltage sticker .
& WARNING
Changing xenon lamps without the ne cessary equipment c an
c au se seriou s per sonal injury .
• Bulb s are pres surized and can explode when being changed.
Potential ri sk of injur y!
• On vehicle s equipped with ga s di scharge bulb s (xenon ligh t)*
life -threaten ing injurie s can re sult from impr oper h andling of the
high -voltage portion s of su ch lamp s!
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